21113468 has 12 divisors (see below), whose sum is σ = 37067352. Its totient is φ = 10522800.

The previous prime is 21113467. The next prime is 21113527. The reversal of 21113468 is 86431112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7058 + ... + 9593.

It is an arithmetic number, because the mean of its divisors is an integer number (3088946).

Almost surely, 2^21113468 is an apocalyptic number.

It is an amenable number.

21113468 is a deficient number, since it is larger than the sum of its proper divisors (15953884).

21113468 is a wasteful number, since it uses less digits than its factorization.

21113468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16972 (or 16970 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 21113468 is about 4594.9393902423. The cubic root of 21113468 is about 276.3884294916.

The spelling of 21113468 in words is "twenty-one million, one hundred thirteen thousand, four hundred sixty-eight".